They should fit. But personally I'd keep the original wheels and refurb them. Especially due to the story behind your a6. What wheels have you got on it currently?
Cheers
Steve
Welcome to the forum Paul you'll find the members on here are a friendly and helpful bunch 🙂 nice to see a fellow old a6 owner on here 🙂 I too keep mine for sentimentality.
Cheers
Steve
If you can call.audi and see what history they have on it as a start. Is this happening when the engine is hot or cold? How long do you drive before it starts to happen? What speed are you going when it happens is from x speed to stop?
Cheers
Steve
Do t know if these are any good?
https://www.onlymanuals.com/audi/a1
http://ownersmanual.audiusa.com/
https://www.audi-sport.net/xf/threads/audi-a1-manual-pdf-download.325019/
https://www.carpdfmanual.com/audi/
Cheers
Steve
It's a swirl flap motor issue which I believe is an expensive fix unfortunately.
http://www.vwaudiforum.co.uk/forum/showthread.php/126678-Fault-codes-P2008-and-P2011
Cheers
Steve
If it's with Audi then you have the right to a courtesy car, providing you book in advance for one. As it's under warranty, I would keep at them untill it's fixed.
Very common on holder vag cars. Check the Skittles panel in the engine bay. Drain holds could be blocked with muck abd leaves. If battery situated there, check the battery tray as the drain holes are probably blocked.
It's definitely worth getting a diagnostic check carried out to see if there are any fault codes stored. If any blades from the turbo have broken off then it could cause the turbo to be intermittent.
I think you're best doing all mechanical mods before doing a remap. It will help gain slightly better torque and bhp on top of the remap on its own. My advice would be to use a remapper with a dyno for best results.